U1040 Diagnostic Trouble Code Discussion for February 2006
Lost Communication With Antilock Brake System Module
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| Help Request | Posted | |
| 2002 Pontiac Montana 3.4L MIL Lamp on VIN: 1GMDU03E42 U1040: Lost Communications With Electronic Brake Control Module. ... and data can be read, after starting, will not communicate data with aftermarket scanner (snap-on), and these codes all return. When abs module left out of circuit, all can be read but code u1040 comes back. Have checked ... |
February 18, 2006 |
